<?php echo form_open(); ?>
    <h3>当前模版 - <?php echo $current_theme; ?></h3>
    <br/><br/>
    <div class="form-group">
        <label for="template">模版选择</label>
        <?php echo form_dropdown('template', $available_themes, (!empty($_POST) ? $_POST['template'] : array($current_theme)),'class="form-control"'); ?>
    </div>
    <button class="btn btn-success" type="submit">提交</button>
<?php echo form_close(); ?>

<br/>
<br/>
<br/>
<br/>